Dark matter and the baryon asymmetry of the universe

Glennys R. Farrar, Gabrijela Zaharijas

    Research output: Contribution to journalArticlepeer-review


    We present a mechanism to generate the baryon asymmetry of the Universe which preserves the net baryon number created in the big bang. If dark matter particles carry baryon number BX, and σX̄annih<σXannih, the X̄'s freeze-out at a higher temperature and have a larger relic density than X's. If mX 4.5BXGeV and the annihilation cross sections differ by O(10%) or more, this type of scenario naturally explains the observed ΩDM 5Ωb.

    Original languageEnglish (US)
    Article number041302
    JournalPhysical Review Letters
    Issue number4
    StatePublished - 2006

    ASJC Scopus subject areas

    • General Physics and Astronomy


    Dive into the research topics of 'Dark matter and the baryon asymmetry of the universe'. Together they form a unique fingerprint.

    Cite this